Battery pack and method for improving temperature field consistency of battery pack
A battery pack and battery module technology, which is applied to small-size batteries/battery packs, large-size batteries/battery packs, secondary batteries, etc., can solve the problem of uneven temperature distribution of battery packs, heat that cannot be removed in time, and impact on battery life. Package performance and other issues, to achieve the effect of improving temperature field consistency, low cost, and good temperature field consistency
Active Publication Date: 2018-01-09
SHENZHEN HONGYUAN BODE NEW ENERGY TECH DEV
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Problems solved by technology
The maximum temperature difference inside the traditional battery pack is often close to 10°C. After long-term operation, the temperature distribution inside the battery pack is uneven, and the heat cannot be removed in time, which can easily cause the battery pack to overheat and affect the performance of the battery pack.
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[0022] In order to further illustrate the technical means and effects adopted by the present invention, the following describes in detail in conjunction with preferred embodiments of the present invention and accompanying drawings.
[0023] Please also see Figure 1-2 , the present invention provides a battery pack, comprising: a battery pack case 1, a battery pack bottom plate 2 disposed opposite to the battery pack case 1, and several battery modules 3 disposed inside the battery pack case 1 , the interior of the battery pack and the interiors of several battery modules 3 are filled with organic silica gel 7 , and the exterior of the battery modules 3 is provided with a heat conduction portion 33 .
[0024] Please also see Figure 1-4 , the battery pack box 1 is in the shape of a shell, and the inside of the battery pack box 1 is provided with a placement part 11 for accommodating the battery module 3 of the battery pack, which can be filled with silicone gel 7 into the bat...
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Abstract
The invention provides a battery pack and a method for improving the temperature field consistency of the battery pack. The battery pack includes: a battery pack box body, a battery pack bottom plate arranged opposite to the battery pack box body, and a Several battery modules inside the body. By filling the inside of the battery pack and the inside of the battery module with silicone gel, the inside of the battery pack is evenly heated, and at the same time, a heat conduction part is provided outside the battery module to discharge the heat inside the battery pack in time, thereby improving the temperature field consistency of the battery pack.
Description
technical field [0001] The invention relates to the technical field of lithium-ion batteries, in particular to a battery pack and a method for improving the temperature field consistency of the battery pack. Background technique [0002] As the concept of environmental protection is deeply rooted in the hearts of the people, pure electric vehicles, as a truly green and environmentally friendly vehicle, will surely become the future development trend of the automotive industry. For a long time, the development of electric vehicles has been limited by the two technical bottlenecks of high battery cost and short life. With the innovation and improvement of technology in recent years, battery technology has developed rapidly. Power batteries have also gradually developed from traditional lead-acid batteries to advanced green power batteries such as nickel-metal hydride batteries, lithium cobalt oxide, lithium manganese oxide, and lithium iron phosphate. However, although the p...
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IPC IPC(8): H01M10/617H01M10/655H01M2/10H01M50/24H01M50/249
CPCH01M50/10H01M50/112H01M50/116H01M50/183Y02E60/10
Inventor 桂松常嘉兴
Owner SHENZHEN HONGYUAN BODE NEW ENERGY TECH DEV